Question:
What is shifting cultivation? What are its disadvantages?
Answer:
In shifting cultivation a plot of land is cleared by felling the trees and burning them. The ashes are then mixed with the soil and crops like maize, yam, potatoes and cassava are grown. After the soil loses its fertility, the land is abandoned and the cultivator moves to a new plot. In the ideal case, shifting cultivation is a cycle where farmers come back to the original place after a couple of years.
Shifting cultivation systems are primitive, backward, wasteful, unproductive, exploitative and the cause of widespread environmental degradation. Shifting cultivators are blamed for the destruction of much of the worlds tropical forests, land degradation, atmospheric pollution and global climatic change.
Resources
Q 1.
What are population pyramids? How do they help in understanding about the population of a country?
Q 2.
Give a brief note on mining.
Q 3.
What are the four Characteristics of resources?
Q 4.
Name the fibre crops and name the climatic conditions required for their growth.
Q 5.
Mention some methods that are used to conserve soil
Q 6.
What is plantation agriculture?
Q 7.
Write a brief note on terrace farming and intercropping.
Q 8.
What are the different characteristics of population composition?
Q 9.
Differentiate between Ubiquitous and localised resources?
Q 10.
Rows of trees planted in the coastal areas to check the wind movement is called intercropping ?
Q 11.
What is sustainable development?
Q 12.
Discuss the role of any two factors influencing population change.
Q 13.
What is mixed cropping or mixed farming?
Q 14.
The world population has grown very rapidly. Why?
Q 15.
What do the 3Rs stand for in context with conservation of natural resources?
Q 16.
What is shifting cultivation? What are its disadvantages?
Q 17.
Name any two steps that government has taken to conserve plants and animals.
Q 18.
Which sources of energy would you suggest for (a) rural areas (b) coastal areas (c) Arid Regions?
Q 19.
How can one increase agricultural production?
Q 20.
What is the average density of population in India?
Q 21.
Name any three common minerals used by you every day.
Q 22.
Mention the different types of resources.
Q 23.
Resources have value- discuss ?
Q 24.
What are abiotic resources?
Q 25.
How was the word agriculture, coined?
Q 26.
What is the difference between Subsistence farming and Commercial farming?
Q 27.
Give a brief description of soil composition or the layers of soil ?
Q 28.
Why are human resources important?
Q 29.
Name the factors influencing agriculture?
Q 30.
Different crops are grown in different regions.
Q 31.
What are the similarities between information technology industries in Bangalore and California?
Q 32.
Distinguish between Metallic and non metallic minerals
Q 33.
What is a water-cycle?
Q 34.
What are the causes for the destruction of natural vegetation and wildlife?
Q 35.
Why is population growth slowing in united Kingdoms?
Q 36.
Write any two reasons for land degradation today?
Q 37.
What is meant by the term industry?
Q 38.
Write a brief note on wind power ?
Q 39.
Name the 3 sectors of activities done by people.
Q 40.
What are the activities under the secondary sector?
Q 41.
How is farming classified?
Q 42.
What is Nomadic herding?
Q 43.
What are the two main classifications of power resources?
Q 44.
Which are the main factors which influence the location of an industry?
Q 45.
Distinguish between the followings
(i) Agro-based and mineral based industry.
Q 46.
Give Reason for Environmental aspects must be carefully looked into before building huge dams.
Q 47.
Quarrying can become a major environmental concern.
Q 48.
Distinguish between Conventional and non conventional sources of energy
Q 49.
Write a brief note on Renewable resources ?
Q 50.
When can people make the best use of nature?
